(1) The theory of rhythm.
(2) The rhythmic features of a language, of poetry, of music, of a style, or of an author’s works (for example, Indian rhythmics, baroque rhythmics, and the rhythmics of A. S. Pushkin or Beethoven).
(3) An aspect of verse study. Unlike metrics, which establishes the rules for constructing a line of verse, rhythmics is concerned with the variety of specific forms of verse within a single correct verse measure.
(4) A system of physical exercises performed to music and designed to develop a sense of rhythm.